#include<stdio.h>
int main()
{
	int n = 0;
	while(scanf("%d",&n) == 1)
	{
		
		for(int i = 0;i < n;i++)
		{
			for(int j = 0;j < n;j++)
			{
				if(i == j)
				printf("*");
				else if(i + j == n - 1)
				printf("*");
				else
				printf(" ");
			}
			printf("\n");
		}
	}
}
